24. I have something important 　　　(tell)you．

23．Why 　　　(not report)to the police when the accident happens?

22．They did all they could　　 (save)the child．

21．1 think it important　 　　(do)so．

20．She would rather stay at home than 　　　(go)out at night．

19．You’d better 　　(not wake)me up when you come in．

18．1 happened 　　　(stand)next to him when he collapsed．

17．1 expect　　　 (finish)the work by the end of next month．

16．Before he let US　 　(go)he made US　 　(promise)　 　(not tell)anyone what

we had seen．

15．The Prime Minister is said 　　(speak)on TV tonight．